Support compiling without ArrayFire installed (#4)

.ijwb/.bazelproject

@@ -1,18 +1,12 @@
+# This is a projectview file generated automatically during bazel project auto-import 
+# For more documentation, please visit https://ij.bazel.build/docs/project-views.html
+# If your repository contains predefined .projectview files, you use 'import' directive to include them.
+# Otherwise, please specify 'directories' and 'targets' you want to be imported
+# 
+# By default we keep your 'directories' and 'targets' sections empty, so nothing is imported.
+# Please uncomment them and put the correct data there, and then run 'Sync' again
+
 directories:
-  # Add the directories you want added as source here
-  # By default, we've added your entire workspace ('.')
   .
-
-# Automatically includes all relevant targets under the 'directories' above
-derive_targets_from_directories: true
-
 targets:
-  # If source code isn't resolving, add additional targets that compile it here
-
-additional_languages:
-  # Uncomment any additional languages you want supported
-  # android
-  # dart
-  # kotlin
-  # python
-  # scala
+  //arrayfire/...

arrayfire/BUILD

@@ -1,9 +1,27 @@
 package(default_visibility = ["//visibility:public"])
 
+genrule(
+    name = "version_include",
+    outs = ["includes/af/version.h"],
+    cmd = """
+    touch $(location includes/af/version.h)
+    """,
+)
+
+genrule(
+    name = "compilers_include",
+    outs = ["includes/af/compilers.h"],
+    cmd = """
+    touch $(location includes/af/compilers.h)
+    """,
+)
+
 genrule(
     name = "generate_capi",
     srcs = [
         "@arrayfire//:include/arrayfire.h",
+        ":version_include",
+        ":compilers_include",
         "@arrayfire//:include_files",
         "@jextract//:bin/jextract",
         "@jextract//:bin/java",
@@ -14,10 +32,14 @@ genrule(
     ],
     cmd = """
     HEADER=$(location @arrayfire//:include/arrayfire.h);
+    VERSION_HEADER=$(location :version_include);
+    VERSION_PARENT=$$(dirname $$VERSION_HEADER);
     $(location @jextract//:bin/jextract) \
       $(location @arrayfire//:include/arrayfire.h) \
       -I $$(dirname $$HEADER) \
+      -I $$(dirname $$VERSION_PARENT) \
       --define-macro AF_API_VERSION=39 \
+      --define-macro __CUDACC_RTC__=1 \
       -t arrayfire.capi \
       ; \
       jar cf $(location arrayfire-capi.jar) arrayfire/capi/*;

deps.bzl

@@ -5,7 +5,7 @@ def arrayfire_java_fla_deps():
         http_archive,
         name = "jextract",
         sha256 = "83626610b1b074bfe4985bd825d8ba44d906a30b24c42d971b6ac836c7eb0671",
-        urls = ["https://download.java.net/java/early_access/jextract/1/openjdk-21-jextract+1-2_linux-x64_bin.tar.gz"],
+        urls = ["https://download.java.net/java/early_access/jextract/21/1/openjdk-21-jextract+1-2_linux-x64_bin.tar.gz"],
         build_file = "@arrayfire_java_fla//:jextract.BUILD",
         strip_prefix = "jextract-21",
     )